ALSA: caiaq: Decoupling ep1_in_urb in caiaq dev
In the Linux kernel, the following vulnerability has been resolved: ALSA: caiaq: Decoupling ep1_in_urb in caiaq dev The epq_in_urb object belonging to the caiaq device is coupled within the struct snd_usb_caiaqdev. After usb_submit_urb(epq_in_urb, GFP_KERNEL) executes successfully, epq_in_urb is successfully added to the urbp_list queue of the dummy HCD driver (userspace specifies dummy_hcd as the HCD layer driver for the caiaq USB device). When init_card() calls snd_usb_caiaq_send_command() which subsequently fails due to a timeout, and proceeds to call snd_card_free() to release the card, the embedded ep1_in_urb object is also freed. When the dummy HCD driver detects that the URB has been unlinked, it returns the URB (by usb_hcd_giveback_urb()), which triggers [1]. Decouple the ep1_in_urb object from the struct snd_usb_caiaqdev and switch to using a pointer instead. Separately allocate and manage the memory for ep1_in_urb to prevent the release of the snd_card memory object from interfering with it. midi_out_urb has the same issue as ep1_in_urb and is handled in the same way. [1] BUG: KASAN: slab-use-after-free in usb_free_urb+0x24/0x120 drivers/usb/core/urb.c:96 Write of size 4 at addr ffff88803cee1050 by task ktimers/1/29 Call Trace: usb_free_urb+0x24/0x120 drivers/usb/core/urb.c:96 dummy_timer+0xaac/0x4d50 drivers/usb/gadget/udc/dummy_hcd.c:2019 __run_hrtimer kernel/time/hrtimer.c:2067 [inline] __hrtimer_run_queues+0x3eb/0xaf0 kernel/time/hrtimer.c:2124 hrtimer_run_softi
CVE-2026-98006
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-98006
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "523f1dce37434a9a6623bf46e7893e2b4b10ac3c",
"lessThan": "a3bbd2845bc7188ae18548a591da1067af997e80",
"versionType": "git"
},
{
"status": "affected",
"version": "523f1dce37434a9a6623bf46e7893e2b4b10ac3c",
"lessThan": "fbfbad728da2e95d6560e43266895de5c8e844b3",
"versionType": "git"
},
{
"status": "affected",
"version": "523f1dce37434a9a6623bf46e7893e2b4b10ac3c",
"lessThan": "dbd3effcbdb85394d3c4bd5ee9df785a44303333",
"versionType": "git"
},
{
"status": "affected",
"version": "523f1dce37434a9a6623bf46e7893e2b4b10ac3c",
"lessThan": "671037b282eb7fe477136bd0130ffd9029eb8668",
"versionType": "git"
},
{
"status": "affected",
"version": "523f1dce37434a9a6623bf46e7893e2b4b10ac3c",
"lessThan": "d6dd3c915b0d02457711d8fbaa60efc52144557f",
"versionType": "git"
},
{
"status": "affected",
"version": "523f1dce37434a9a6623bf46e7893e2b4b10ac3c",
"lessThan": "0c1b907d5db2f3508375776e5b78d69591aa5626",
"versionType": "git"
},
{
"status": "affected",
"version": "523f1dce37434a9a6623bf46e7893e2b4b10ac3c",
"lessThan": "d41e6c1533f09b27fc562260d41417490d2b6084",
"versionType": "git"
},
{
"status": "affected",
"version": "523f1dce37434a9a6623bf46e7893e2b4b10ac3c",
"lessThan": "402a9d6aab7ac787ab075adeb562c3db8b8f564b",
"versionType": "git"
}
],
"programFiles": [
"sound/usb/caiaq/device.c",
"sound/usb/caiaq/device.h",
"sound/usb/caiaq/midi.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.22"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.22",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.271",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.222",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.111",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.7",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"sound/usb/caiaq/device.c",
"sound/usb/caiaq/device.h",
"sound/usb/caiaq/midi.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98006
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38133 · Revision 1
- Added to Heist Feed
- Publisher date